Module: Gogetit::Util

Included in:
Etcd::Etcd, CLI, Config, GogetLXD, GogetLibvirt
Defined in:
lib/gogetit/util.rb

Instance Method Summary collapse

Instance Method Details

#check_ip_available(addresses, maas, logger) ⇒ Object 



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# File 'lib/gogetit/util.rb', line 177

def check_ip_available(addresses, maas, logger)
  logger.info("Calling <#{__method__.to_s}>")
  # to do a ping test
  addresses.each do |ip|
    abort("#{ip} is already being used.") if ping_available?(ip, logger)
  end
  # to check with MAAS
  ifaces = maas.ip_reserved?(addresses)
  abort("one of #{addresses.join(', ')} is already being used.") \
    unless ifaces
  return ifaces
end

#get_gateway(version) ⇒ Object 



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# File 'lib/gogetit/util.rb', line 122

def get_gateway(version)
  IO.popen("ip -#{version.to_s} route").read.each_line do |route|
    if route.include? 'default'
      route.split[2]
    else
      'There is no get_gateway!'
      nil
    end
  end
end

#knife_bootstrap(name, provider, config, logger) ⇒ Object 



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# File 'lib/gogetit/util.rb', line 13

def knife_bootstrap(name, provider, config, logger)
  logger.info("Calling <#{__method__.to_s}>")
  config[:chef][:target_environment] ||= '_default'
  if find_executable 'knife'
    if system('knife ssl check')
      install_cmd = "curl \
      -l #{config[:chef][:bootstrap][:install_script][provider.to_sym]} \
      | sudo bash -s --"
      knife_cmd = "knife bootstrap -y #{name} \
      --node-name #{name} \
      --ssh-user ubuntu \
      --sudo \
      --environment #{config[:chef][:target_environment]} \
      --bootstrap-install-command \"#{install_cmd}\"".gsub(/ * /, ' ')
      puts 'Bootstrapping..'
      puts knife_cmd
      system(knife_cmd)
    end
  end
end

#knife_remove(name, logger) ⇒ Object 



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# File 'lib/gogetit/util.rb', line 97

def knife_remove(name, logger)
  logger.info("Calling <#{__method__.to_s}>")
  if find_executable 'knife'
    if system('knife ssl check')
      puts "Deleting node #{name}.."
      system("knife node delete -y #{name}")
      puts "Deleting client #{name}.."
      system("knife client delete -y #{name}")
    end
  end
end

#ping_available?(host, logger) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gogetit/util.rb', line 161

def ping_available?(host, logger)
  # host can be both IP and ip_or_fqdn.
  logger.info("Calling <#{__method__.to_s}> for #{host}")
  `ping -c 1 -W 1 #{host}`
  $?.exitstatus == 0
end

#recognize_env ⇒ Object 



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# File 'lib/gogetit/util.rb', line 109

def recognize_env
  thedir = 'lib/env'
  gateway = get_gateway(4)
  Dir.foreach(thedir) do |item|
    if item.match(/\.json$/)
      env_data = JSON.parse(File.read(thedir+'/'+item))
      if gateway =~ Regexp.new(env_data['regexp_pattern'])
        return env_data['name']
      end
    end
  end
end

#run_command(cmd, logger) ⇒ Object 



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# File 'lib/gogetit/util.rb', line 8

def run_command(cmd, logger)
  logger.info("Calling <#{__method__.to_s}> to run #{cmd}")
  system(cmd)
end

#run_through_ssh(host, distro_name, commands, logger) ⇒ Object 



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# File 'lib/gogetit/util.rb', line 190

def run_through_ssh(host, distro_name, commands, logger)
  logger.info("Calling <#{__method__.to_s}>")
  Net::SSH.start(host, distro_name) do |ssh|
    commands.each do |cmd|
      logger.info("'#{cmd}' is being executed..")
      output = ssh.exec!(cmd)
      puts output if output != ''
    end
  end
end

#ssh_available?(ip_or_fqdn, user, logger) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gogetit/util.rb', line 168

def ssh_available?(ip_or_fqdn, user, logger)
  logger.info("Calling <#{__method__.to_s}>")
  begin
    Net::SSH.start(ip_or_fqdn, user).class
  rescue Exception => e
    puts e
  end
end

#symbolize_keys(thing) ⇒ Object

taken from gist.github.com/andrewpcone/11359798



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# File 'lib/gogetit/util.rb', line 134

def symbolize_keys(thing)
  case thing
  when Array
    thing.map{|v| symbolize_keys(v)}
  when Hash
    inj = thing.inject({}) {|h, (k,v)| h[k] = symbolize_keys(v); h}
    inj.symbolize_keys
  else
    thing
  end
end

#update_databags(config, logger) ⇒ Object 



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# File 'lib/gogetit/util.rb', line 34

def update_databags(config, logger)
  logger.info("Calling <#{__method__.to_s}>")
  data_bags_dir = "#{config[:chef][:chef_repo_root]}/data_bags"

  puts 'Listing databags..'
  databags_as_is = `knife data bag list`.split
  databags_to_be = Dir.entries(data_bags_dir) - ['.', '..']

  puts 'Checking databags to delete..'
  (databags_as_is - databags_to_be).each do |bag|
    puts "Deleting databag '#{bag}'.."
      answer = ask(
        'Do you really want to delete this?',
        :echo => true,
        :limited_to => ['y', 'n']
      )
      case answer
      when 'y'
        run_command("knife data bag delete -y #{bag}", logger)
      when 'n'
        puts 'Keeping..'
      end
  end

  puts 'Checking databags to create..'
  (databags_to_be - databags_as_is).each do |bag|
    puts "Creating databag '#{bag}'.."
    run_command("knife data bag create #{bag}", logger)
  end

  puts 'Checking items..'
  databags_to_be.each do |bag|
    items_as_is = `knife data bag show #{bag}`.split
    Dir.entries(data_bags_dir+'/'+bag).select do |file|
      /^.*\.json/.match(file)
    end.each do |item|
      item_file = data_bags_dir+'/'+bag+'/'+item
      item = item.gsub('.json', '')
      if JSON.parse(File.read(item_file))['vault']
        if items_as_is.include? item
          run_command(
            "knife vault update #{bag} #{item} --json #{item_file}"\
            " --search '*:*' -M client",
            logger
          )
        else
          run_command(
            "knife vault create #{bag} #{item} --json #{item_file}"\
            " --search '*:*' -M client",
            logger
          )
        end
        run_command(
          "knife vault refresh #{bag} #{item} --clean-unknown-clients -M client",
          logger
        )
      else
        run_command("knife data bag from file #{bag} #{item_file}", logger)
      end
    end
  end
end

#wait_until_available(ip_or_fqdn, distro_name, logger) ⇒ Object 



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# File 'lib/gogetit/util.rb', line 146

def wait_until_available(ip_or_fqdn, distro_name, logger)
  logger.info("Calling <#{__method__.to_s}>")
  until ping_available?(ip_or_fqdn, logger)
    logger.info("Calling <#{__method__.to_s}> for ping to be ready..")
    sleep 3
  end
  logger.info("#{ip_or_fqdn} is now available to ping..")

  until ssh_available?(ip_or_fqdn, distro_name, logger)
    logger.info("Calling <#{__method__.to_s}> for ssh to be ready..")
    sleep 3
  end
  logger.info("#{ip_or_fqdn} is now available to ssh..")
end